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<TITLE>[Chapter 25] 25.7 java.lang.Character (JDK 1.0)</TITLE>
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<h2 CLASS=sect1><A CLASS="TITLE" NAME="JNUT2-CH-25-SECT-7">25.7 java.lang.Character (JDK 1.0)</A></h2>

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<P CLASS=para>
This class provides an immutable object wrapper around the
primitive <tt CLASS=literal>char</tt> data type. <tt CLASS=literal>charValue()</tt>
returns the <tt CLASS=literal>char</tt> value of a <tt CLASS=literal>Character</tt>
object. A number of class methods provide the Java/Unicode
equivalent of the C <I CLASS=emphasis>&lt;ctype.h&gt;</I> character macros for
checking the type of characters and converting to uppercase
and lowercase letters. <tt CLASS=literal>getType()</tt> returns the
character type.  The return value is one of the constants
defined by the class, which represents a number of broad
Unicode character categories.

<P CLASS=para>
<tt CLASS=literal>digit()</tt> returns the integer
equivalent of a given character for a given radix
(e.g., radix 16 for hexadecimal). <tt CLASS=literal>forDigit()</tt> returns
the character that corresponds to the specified value for
the specified radix.

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public final class <tt CLASS=literal>Character</tt> extends Object implements Serializable {
    // <tt CLASS=literal>Public Constructor</tt>
            public <tt CLASS=literal>Character</tt>(char <tt CLASS=literal>value</tt>);
    // <tt CLASS=literal>Constants</tt>
            public static final int <tt CLASS=literal>MAX_RADIX</tt>, <tt CLASS=literal>MIN_RADIX</tt>;
            public static final char <tt CLASS=literal>MAX_VALUE</tt>, <tt CLASS=literal>MIN_VALUE</tt>;
        <b>1.1</b>public static final Class <tt CLASS=literal>TYPE</tt>;
    // <tt CLASS=literal>Character Type Constants</tt>
        <b>1.1</b>public static final byte <tt CLASS=literal>COMBINING_SPACING_MARK</tt>, <tt CLASS=literal>CONNECTOR_PUNCTUATION</tt>, <tt CLASS=literal>CONTROL</tt>;
        <b>1.1</b>public static final byte <tt CLASS=literal>CURRENCY_SYMBOL</tt>, <tt CLASS=literal>DASH_PUNCTUATION</tt>, <tt CLASS=literal>DECIMAL_DIGIT_NUMBER</tt>;
        <b>1.1</b>public static final byte <tt CLASS=literal>ENCLOSING_MARK</tt>, <tt CLASS=literal>END_PUNCTUATION</tt>, <tt CLASS=literal>FORMAT</tt>;
        <b>1.1</b>public static final byte <tt CLASS=literal>LETTER_NUMBER</tt>, <tt CLASS=literal>LINE_SEPARATOR</tt>, <tt CLASS=literal>LOWERCASE_LETTER</tt>;
        <b>1.1</b>public static final byte <tt CLASS=literal>MATH_SYMBOL</tt>, <tt CLASS=literal>MODIFIER_LETTER</tt>, <tt CLASS=literal>MODIFIER_SYMBOL</tt>;
        <b>1.1</b>public static final byte <tt CLASS=literal>NON_SPACING_MARK</tt>, <tt CLASS=literal>OTHER_LETTER</tt>, <tt CLASS=literal>OTHER_NUMBER</tt>;
        <b>1.1</b>public static final byte <tt CLASS=literal>OTHER_PUNCTUATION</tt>, <tt CLASS=literal>OTHER_SYMBOL</tt>, <tt CLASS=literal>PARAGRAPH_SEPARATOR</tt>;
        <b>1.1</b>public static final byte <tt CLASS=literal>PRIVATE_USE</tt>, <tt CLASS=literal>SPACE_SEPARATOR</tt>, <tt CLASS=literal>START_PUNCTUATION</tt>;
        <b>1.1</b>public static final byte <tt CLASS=literal>SURROGATE</tt>, <tt CLASS=literal>TITLECASE_LETTER</tt>, <tt CLASS=literal>UNASSIGNED</tt>;
        <b>1.1</b>public static final byte <tt CLASS=literal>UPPERCASE_LETTER</tt>;
    // <tt CLASS=literal>Class Methods</tt>
            public static int <tt CLASS=literal>digit</tt>(char <tt CLASS=literal>ch</tt>, int <tt CLASS=literal>radix</tt>);
            public static char <tt CLASS=literal>forDigit</tt>(int <tt CLASS=literal>digit</tt>, int <tt CLASS=literal>radix</tt>);
        <b>1.1</b>public static int <tt CLASS=literal>getNumericValue</tt>(char <tt CLASS=literal>ch</tt>);
        <b>1.1</b>public static int <tt CLASS=literal>getType</tt>(char <tt CLASS=literal>ch</tt>);
            public static boolean <tt CLASS=literal>isDefined</tt>(char <tt CLASS=literal>ch</tt>);
            public static boolean <tt CLASS=literal>isDigit</tt>(char <tt CLASS=literal>ch</tt>);
        <b>1.1</b>public static boolean <tt CLASS=literal>isISOControl</tt>(char <tt CLASS=literal>ch</tt>);
        <b>1.1</b>public static boolean <tt CLASS=literal>isIdentifierIgnorable</tt>(char <tt CLASS=literal>ch</tt>);
        <b>1.1</b>public static boolean <tt CLASS=literal>isJavaIdentifierPart</tt>(char <tt CLASS=literal>ch</tt>);
        <b>1.1</b>public static boolean <tt CLASS=literal>isJavaIdentifierStart</tt>(char <tt CLASS=literal>ch</tt>);
        #   public static boolean <tt CLASS=literal>isJavaLetter</tt>(char <tt CLASS=literal>ch</tt>);
        #   public static boolean <tt CLASS=literal>isJavaLetterOrDigit</tt>(char <tt CLASS=literal>ch</tt>);
            public static boolean <tt CLASS=literal>isLetter</tt>(char <tt CLASS=literal>ch</tt>);
            public static boolean <tt CLASS=literal>isLetterOrDigit</tt>(char <tt CLASS=literal>ch</tt>);
            public static boolean <tt CLASS=literal>isLowerCase</tt>(char <tt CLASS=literal>ch</tt>);
        #   public static boolean <tt CLASS=literal>isSpace</tt>(char <tt CLASS=literal>ch</tt>);
        <b>1.1</b>public static boolean <tt CLASS=literal>isSpaceChar</tt>(char <tt CLASS=literal>ch</tt>);
            public static boolean <tt CLASS=literal>isTitleCase</tt>(char <tt CLASS=literal>ch</tt>);
        <b>1.1</b>public static boolean <tt CLASS=literal>isUnicodeIdentifierPart</tt>(char <tt CLASS=literal>ch</tt>);
        <b>1.1</b>public static boolean <tt CLASS=literal>isUnicodeIdentifierStart</tt>(char <tt CLASS=literal>ch</tt>);
            public static boolean <tt CLASS=literal>isUpperCase</tt>(char <tt CLASS=literal>ch</tt>);
        <b>1.1</b>public static boolean <tt CLASS=literal>isWhitespace</tt>(char <tt CLASS=literal>ch</tt>);
            public static char <tt CLASS=literal>toLowerCase</tt>(char <tt CLASS=literal>ch</tt>);
            public static char <tt CLASS=literal>toTitleCase</tt>(char <tt CLASS=literal>ch</tt>);
            public static char <tt CLASS=literal>toUpperCase</tt>(char <tt CLASS=literal>ch</tt>);
    // <tt CLASS=literal>Public Instance Methods</tt>
            public char <tt CLASS=literal>charValue</tt>();
            public boolean <tt CLASS=literal>equals</tt>(Object <tt CLASS=literal>obj</tt>);  //<tt CLASS=literal> Overrides Object</tt>
            public int <tt CLASS=literal>hashCode</tt>();  //<tt CLASS=literal> Overrides Object</tt>
            public String <tt CLASS=literal>toString</tt>();  //<tt CLASS=literal> Overrides Object</tt>
}
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